<template>
  <div>
    <template v-for="(item, index) in options">
      <template v-if="values.includes(item.value)">
        <span
          v-if="(item.elTagType == 'default' || item.elTagType == '') && (item.elTagClass == '' || item.elTagClass == null)"
          :key="item.value"
          :index="index"
          :class="item.elTagClass"
        >{{ item.label + " " }}</span>
        <el-tag
          v-else
          :key="item.value + ''"
          :disable-transitions="true"
          :index="index"
          :type="item.elTagType === 'primary' ? '' : item.elTagType"
          :class="item.elTagClass"
        >{{ item.label + " " }}</el-tag>
      </template>
    </template>
    <template v-if="unmatch && showValue">
      {{ handleArray(unmatchArray) }}
    </template>
  </div>
</template>

<script setup>
// 记录未匹配的项
const unmatchArray = ref([]);

const props = defineProps({
	// 数据
	options: {
		type: Array,
		default: null,
	},
	// 当前的值
	value: [Number, String, Array],
	// 当未找到匹配的数据时，显示value
	showValue: {
		type: Boolean,
		default: true,
	},
	separator: {
		type: String,
		default: ',',
	}
});

const values = computed(() => {
	if (props.value === null || typeof props.value === 'undefined' || props.value === '') return [];
	return Array.isArray(props.value) ? props.value.map(item => String(item)) : String(props.value).split(props.separator);
});

const unmatch = computed(() => {
	unmatchArray.value = [];
	// 没有value不显示
	if (props.value === null || typeof props.value === 'undefined' || props.value === '' || props.options.length === 0) return false;
	// 传入值为数组
	let unmatch = false; // 添加一个标志来判断是否有未匹配项
	values.value.forEach(item => {
		if (!props.options.some(v => v.value === item)) {
			unmatchArray.value.push(item);
			unmatch = true; // 如果有未匹配项，将标志设置为true
		}
	});
	return unmatch; // 返回标志的值
});

function handleArray(array) {
	if (array.length === 0) return '';
	return array.reduce((pre, cur) => {
		return pre + ' ' + cur;
	});
}
</script>

<style scoped>
.el-tag + .el-tag {
  margin-left: 10px;
}
</style>
